by Milena Kovac and Eildert Groeneveld
December 2003
University of Ljubljana,
Biotechnical Faculty
Department of Animal Science
Gobolje 3, 1230 DOMZALE, Slovenia
milena@mrcina.bfro.uni-lj.si
Institute of Animal Science
Federal Agricultural Research Center (FAL)
Mariensee
Höltystraße 10
D-31535 Neustadt, Germany
eg@tzv.fal.de